EP0837660A1 - Surgical mesh fabric - Google Patents
Surgical mesh fabricInfo
- Publication number
- EP0837660A1 EP0837660A1 EP96923738A EP96923738A EP0837660A1 EP 0837660 A1 EP0837660 A1 EP 0837660A1 EP 96923738 A EP96923738 A EP 96923738A EP 96923738 A EP96923738 A EP 96923738A EP 0837660 A1 EP0837660 A1 EP 0837660A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mesh
- recited
- hexagonal mesh
- implantable dual
- knit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/10—Open-work fabrics
- D04B21/12—Open-work fabrics characterised by thread material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0063—Implantable repair or support meshes, e.g. hernia meshes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0063—Implantable repair or support meshes, e.g. hernia meshes
- A61F2002/0068—Implantable repair or support meshes, e.g. hernia meshes having a special mesh pattern
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30113—Rounded shapes, e.g. with rounded corners circular
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30143—Convex polygonal shapes hexagonal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30148—Convex polygonal shapes lozenge- or diamond-shaped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30154—Convex polygonal shapes square
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
- A61F2230/0021—Angular shapes square
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2509/00—Medical; Hygiene
- D10B2509/02—Bandages, dressings or absorbent pads
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2509/00—Medical; Hygiene
- D10B2509/08—Hernia repair mesh
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
Definitions
- the present invention relates to a surgical mesh fabric and. more particularly, to a surgical mesh fabric for use in laparoscopic procedures.
- Marlex mesh a single bar wa ⁇ knit, dual course Atlas polypropylene monofilament knit
- Atlas polypropylene monofilament knit is exemplary of an implant material that has been successfully used in hernia repair.
- prosthetic repair materials are placed in an open procedure where a two inch or longer incision is made through the abdominal wall, layers of healthy tissue are retracted to expose the void and then the rupture is filled or covered with the implantable fabric.
- prosthetic surgical fabrics have been implanted laparoscopically which is a surgical procedure employing slender tubes (cannulas) that extend through narrow punctures in the abdominal wall.
- the surgeon employs an illuminating optical instrument through one ofthe cannula to visualize the surgical site on a television monitor.
- Surgical instruments are manipulated by the surgeon through other cannula in the abdominal wall, as the location ofthe instruments are observed on the monitor, to place the prosthetic repair material over or in the defect.
- the present invention is a dual bar warp knit, hexagonal mesh fabric that is particularly suitable for use in laparoscopic hernia repair, although it is contemplated for classical open procedures as well.
- the mesh fabric exhibits a favorable combination of physical and performance characteristics while still allowing the surgeon to see through the fabric during laparoscopy.
- the prosthetic repair material is formed of polypropylene monofilament threads that have been dual bar wa ⁇ knitted into a large pore hexagonal mesh according to a back bar pattern chain of 2/0 2/4 2/0 4/6 4/2 4/6 and a front bar pattern chain of 4/6 4/2 4/6 2/0 2/4 2/0.
- Fig. 1 is a photomicrograph (approximately 1 lx mag.) of a wa ⁇ knit dual bar, hexagonal mesh fabric according to the present invention.
- Fig. 2 is the chain lapping pattern for the mesh fabric shown in Fig. 1.
- the present invention is a surgical mesh fabric for reinforcing and closing soft tissue defects, and is particularly indicated for chest wall reconstruction and the repair of inguinal hernias.
- the mesh fabric is formed of a biologically compatible, flexible and strong implantable material.
- the dual bar (two partially threaded guide bars) wa ⁇ knit, diamond fabric includes large openings between adjacent yarn columns, ensuring good visibility ofthe underlying anatomy when the fabric is used in laparoscopic procedures without sacrificing mechanical properties of the mesh.
- the porous character of the fabric allows tissue infiltration to inco ⁇ orate the prosthetic.
- the dual bar construction provides a stable fabric which is resistant to unraveling
- the knitted fabric is sufficiently strong to prevent pullout of anchoring sutures.
- the flexible fabric may be collapsed into a slender configuration, such as a roll, which can be supported in. and advanced through, a narrow laparoscopic cannula.
- the porous prosthetic repair fabric When knitted from polypropylene monofilament yarns, the porous prosthetic repair fabric allows a prompt fibroblastic response through the interstices of the mesh, forming a secure
- the polypropylene monofilament fabric is inert in the presence of infection, non- wettable and has a low foreign body reaction.
- the fabric illustrated in the lapping pattern and photomicrograph of Figs. 1-2, is a two bar warp knit, hexagonal mesh produced by using two partially threaded guide bars to knit the same pattern over three needles in a six course repeat.
- the column portions are formed by two
- a selvage edge may be formed using a double end of yarn and knitting over two empty needle spaces on each side ofthe band defining the band width.
- the tension on the yarns may be greater when knitting the selvage as compared 0 to the body ofthe mesh to encourage the denser selvage to curl over itself in the direction of body of the mesh, forming a rigid edge member which can be grasped with laparoscopic tools during placement to help position the implant relative to the surgical site.
- the fabric is washed with water and a cleaning agent, such as Triton
- the pores have an elongated diamond to square shape, although other shapes including, without limitation, diamond, square, circular and near-circular, are contemplated so
- the surgical mesh fabric preferably is knit from monofilament polypropylene, other monofilament and multifilament yarns that are biologically compatible may also be suitable as would be apparent to one of skill in the art. Fabric parameters, such as quality, stretch, and yarn size may vary depending upon the application. In a representative embodiment, the fabric is formed of 0.006 inch polypropylene monofilament yarn (160 denier) knitted on a 36 gauge machine, although other gauges are contemplated. The mesh sheets may be knitted in twelve inch widths, although other dimensions are contemplated. The surgeon may cut the mesh into smaller pieces or shapes, preferably with heated or ultrasonic instruments, to melt and seal the edges ofthe fabric. EXAMPLES
- Mesh Thickness A 6" X 6" sample of mesh was placed on a standard fabric thickness gauge with a 1.29 inch diameter pressure foot and 10 oz. weight. The thickness was measured by lowering the foot on the middle ofthe sample and reading the thickness from the dial gauge, one reading per sample, to the nearest 0.001 inch.
- Pore Size A sample of mesh was placed on an optical measurement device. The area of a shape that closely approximated the shape of a pore was calculated following acquisition of several reference points.
- Burst Tester Hydraulic pressure was slowly increased causing a rubber diaphragm to inflate, contact the mesh, and burst the mesh. The peak pressure (psi) required to burst the mesh was recorded.
- a 3.5" slit was cut parallel to the long dimension of a 3" x 8" piece of mesh. The slit was cut at the middle of one 3" side extending 3.5" into the sample.
- the pounds load at a 40° angle was chosen as the value for comparison since it is about mid-way in the range of angular deflection (0-90°).
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US502021 | 1995-07-13 | ||
US08/502,021 US5569273A (en) | 1995-07-13 | 1995-07-13 | Surgical mesh fabric |
PCT/US1996/011516 WO1997002789A1 (en) | 1995-07-13 | 1996-07-11 | Surgical mesh fabric |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0837660A1 true EP0837660A1 (en) | 1998-04-29 |
EP0837660B1 EP0837660B1 (en) | 2000-05-24 |
Family
ID=23995987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96923738A Expired - Lifetime EP0837660B1 (en) | 1995-07-13 | 1996-07-11 | Surgical mesh fabric |
Country Status (7)
Country | Link |
---|---|
US (1) | US5569273A (en) |
EP (1) | EP0837660B1 (en) |
JP (1) | JP3692540B2 (en) |
BR (1) | BR9609352A (en) |
DE (1) | DE69608562T2 (en) |
ES (1) | ES2148778T3 (en) |
WO (1) | WO1997002789A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9833240B2 (en) | 2008-02-18 | 2017-12-05 | Covidien Lp | Lock bar spring and clip for implant deployment device |
US10159554B2 (en) | 2008-02-18 | 2018-12-25 | Covidien Lp | Clip for implant deployment device |
US10182898B2 (en) | 2008-02-18 | 2019-01-22 | Covidien Lp | Clip for implant deployment device |
Families Citing this family (146)
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US5569273A (en) * | 1995-07-13 | 1996-10-29 | C. R. Bard, Inc. | Surgical mesh fabric |
WO1997035533A1 (en) | 1996-03-25 | 1997-10-02 | Enrico Nicolo | Surgical mesh prosthetic material and methods of use |
DE19613730C2 (en) * | 1996-03-26 | 2002-08-14 | Ethicon Gmbh | Flat implant for strengthening or closing body tissue |
WO1998014134A2 (en) * | 1996-10-04 | 1998-04-09 | Ethicon, Inc. | Knitted surgical mesh |
US5824047A (en) * | 1996-10-11 | 1998-10-20 | C. R. Bard, Inc. | Vascular graft fabric |
ES2289773T3 (en) * | 1997-02-28 | 2008-02-01 | Covidien Ag | METHOD OF PRODUCING A FABRIC. |
US6120539A (en) * | 1997-05-01 | 2000-09-19 | C. R. Bard Inc. | Prosthetic repair fabric |
FR2766698B1 (en) * | 1997-08-01 | 1999-11-05 | Cogent Sarl | ADJUSTED THREE-DIMENSIONAL PROSTHETIC FABRIC |
US6042592A (en) | 1997-08-04 | 2000-03-28 | Meadox Medicals, Inc. | Thin soft tissue support mesh |
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FR2767671B1 (en) | 1997-08-27 | 1999-11-26 | Ethnor | PROSTHETIC SHUTTER DEVICE FOR SHUTTERING HERNARY CHANNELS |
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US6090116A (en) * | 1997-10-03 | 2000-07-18 | D'aversa; Margaret M. | Knitted surgical mesh |
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US6074420A (en) | 1999-01-08 | 2000-06-13 | Board Of Trustees Of The University Of Arkansas | Flexible exint retention fixation for external breast prosthesis |
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FR2807936B1 (en) | 2000-04-20 | 2002-08-02 | Sofradim Production | ABDOMINAL WALL REINFORCEMENT FOR THE TREATMENT OF INGUINAL HERNIA BY ANTERIOR VOLTAGE-FREE |
FR2807937B1 (en) * | 2000-04-20 | 2002-08-02 | Sofradim Production | GRIPPED PROSTHETIC KNIT, MANUFACTURING METHOD THEREOF AND REINFORCEMENT IMPLANT FOR THE TREATMENT OF WALL DEFICITS |
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US9833240B2 (en) | 2008-02-18 | 2017-12-05 | Covidien Lp | Lock bar spring and clip for implant deployment device |
US10159554B2 (en) | 2008-02-18 | 2018-12-25 | Covidien Lp | Clip for implant deployment device |
US10182898B2 (en) | 2008-02-18 | 2019-01-22 | Covidien Lp | Clip for implant deployment device |
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DE69608562T2 (en) | 2001-01-25 |
DE69608562D1 (en) | 2000-06-29 |
BR9609352A (en) | 1999-08-17 |
AU6459296A (en) | 1997-02-10 |
AU705361B2 (en) | 1999-05-20 |
JP3692540B2 (en) | 2005-09-07 |
EP0837660B1 (en) | 2000-05-24 |
ES2148778T3 (en) | 2000-10-16 |
WO1997002789A1 (en) | 1997-01-30 |
MX9710446A (en) | 1998-08-30 |
US5569273A (en) | 1996-10-29 |
JP2001519677A (en) | 2001-10-23 |
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